Textile apparatus



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TEXTILE APPARATUS Filed Aug. 28, 1929 8 Sheets-Sheet 4 l1 u 11 Ill 1@EQQM June 23, MAGNANO TEXTILE APPARATUS 1 Filed Aug. 28, 1929". aSheets-Sheet 5 June 23, 1931. s. MAGNANO TEXTILE APPARATUS Filed Aug.28, 1929 8 Sheets-Sheet 6 June 23, 1931.

s. MAGNANO 1,811,206 TEXTILE APPARATUS Filed Aug. 28, 1929 8Sheets-Sheet 7 June 23, 1931.

5. MAG N ANO TEXTILE APPARATUS Filed Aug. 28, 1929 8 Sheets-Sheet 8 resUNITED Sl SEBASTIANO MAGNANO, OF LAWRENCE, MA$SACI-IUSETT$ ASSIGNOR TOMAGNANO CORPORATION, OF LA'WRENOE, MASSACHUSETTS,

SETTS PATENT Fries TEXTILE ArPARliriIs Application filed. August28,1929. Serial No. 388,972.

; particularly to apparatus of the general type disposed in the patentto Dustin, No. 1,072,103, September 2, 1913 and in my prior patents N 0.1,512,704, dated October 21, 192 1,

o..1,516,675, dated November 25, 1924,.No.

1,530,605, dated May 2 1, 1925, and No. 1,584,

236, dated May 11, 1926, and constitutes an improvement upon theapparatus disclosed in said patents.

In my copending application, Serial No.

35,190 filed January 26, 1929, I have disclosed mechanism having thesame general purpose as that of the aforesaid patents, but simplifiedand reduced in size and having a single movable magazine for drop wiresadapted to deliver wires in a plurality of banks, together with meansfor selecting and accurately positioning the yarns for the reception ofthe wires.

I have now devised drop wire distributing mechanism of furth r improvedconstruction, even simpler than that disclosed in my aforesaidapplications, which is cheaper toconstruct and lighter in weight, andwhich is distinguished from the prior apparatus among other things inthe substitution of spring means for advanclng the magazine carriage,and for compacting the wires within the magazine. These and otherfeatures of improvement will be described more specifically hereinafterby reference to the accompanying drawings in which a preferredembodiment of the invention is illustrated by way of example, and inwhich:

Fig. 1 is a front elevation of the apparatus showing the supportingrails in vertical sec tion;

Fig. 2 is a rear elevation of the apparatus shown in Fig. 1;

Fig. 3 is a plan view of the same apparatus; V

Fig. 4 is an elevation of the left-hand end of the machine as viewed inFig. 1;

Fig. 5 is a fragmentary section, with cer tain parts omitted, on theline 55 of Fig. 1; v v

Fig. is a View similar to Fig. 9 but.

showing the same parts in another together with associated parts;-

. Fig. 11 is an end elevation of the right hand end of the machine,omitting certain parts; 1

Figs. 11 and 12 to 17 inclusive are fragmentary elevations from the leftend of the machine illustrating the several steps in the process ofseparating the yarn and placing a wire thereon; a

Fig. 18 is a fragmentary horizontal secposition,

tion substantially. on the line 1818" of Fig. 3; V

Fig. 19 is a composite view showing the follower block of the magazinein side and end elevation respectively;

*ig. 20 is a side elevation of one of the wire-receiving fingers; andFig. 21 is a side elevation of one guard members fingers.

of the associated with the receiving Main frame'and drive Referring tothe drawings (Figs. 1, 2, 8'and 4) theframe of the machine comprises theleft end member or head 1 and the right end member 2, the latterpreferablyflbeing of substantially inverted U-shape. Front and rearrails 8 and 4- respectively connect the left and right end members. Thend members 1 and 2 are provided with brackets carrying front supportingrolls 6 and 7, and with rearwardly extending-brackets having alignedbearings for a shaft 8 to which are fixed the rear supporting rolls 9and 10. The rolls 6 and 9 are designed to rest upon a rail 14: while therolls 7 and 10 rest upon conronerron or MASSAGHTL' 7 is a fragmentarysection on the line a rail 15. These rails may be considered as parts ofthe present machine and are placed upon the loom frame only when needed.If desired and as shown and described in my aforesaid application, therolls 9 and 10 may be provided with toothed or gear portions and therails may be furnished with corresponding racks with which such gearportions of the rolls mesh, thus preventing slippage between the rollsand rails. Preferably the shaft 8 is provided with a hand wheel 20 forturning it manually, thus permitting the machine to be moved along therails whenever desired.

Provision is also made for moving the machine automatically step by stepalong the rails 14 and 15 in order to position the machine forapplication of drop wires to successive groups of warp threads. For thepurpose of moving the machine automatically, the shaft 8 isextended tothe left of the end frame or head 1 and carries a ratchet wheel 21.Shaft 8 also carries a sleeve 22 (Fig. 3) free to turn upon the shaftand having arms 23 and 24 (Fig. 4) projocti g at substantially rightangles to each other. A feeding pawl 25 is pivotally mounted at 26 atthe lower end of tie arm 24 and this pawl is provided with an arm 27 towhich the upper end of a link 28 is pivotally con nected. The lower endof the link 28 carries a bracket 29 to which is connectedthc stem 30 ofa detector or feeier member 32 which is adapted to rest upon and besupported by the set of warp threads. The stem 30 is guided in a fixedmember 31 projecting from the frame member 1, and at a point below thebracket 29 the stem 30 passes loosely through an opening in a lifterlever 33 secured to the end of a lifter lever 34 pivotally united at 35to a boss on the frame 1.

A spring 39 tents to raise the lever 34, the latter being provided witha cam follower 36 which engages a controlling cam (not shown) upon ashaft 38. The shaft 38 is journalled at its right hand end (Fig. 1) in asuitable bearing in the end frame 1 and at its left hand end in abearing provided at the lower end of a bracket 40 projecting outwardlyand downwardly from the end frame member 1. The shaft 38 is furnishedwith a sprocket wheel 41 which recei es a driving chain 42 engaging asprocket wheel 43 fixed to a main drive shaft 44. This main shaft isjournalled near its left hand end (Fig. 1) in a bearing opening in theend frame 1 and near its other end in a bearing provided in the endframe 2. An intermediate bearing is provided in a bracket 45 secured tothe front rail 3.

A link 49 (r ig. 4) is pivotally secured to the arm 23 of the sleeve 22and at its lower end the link 49 is pivotally connected at 50 (Fig. 2)to a lever 51 pivotally mounted on the pin 35 above referred to. Thislever 51 carries a cam follower which engages a cam (not shown) mountedon shaft 38. A spring 54 (Fig. 1) connected to lever 51 holds thefollower in contact with the cam.

A bracket 55 attached to rail 3 supports a casing 59 which housesreduction gearing of any usual type adapted to transmit motion from theshaft of an electric motor 60, also supported by bracket 55, to a gear61 fixed to the main drive shaft 44. Suitable controlling switches forthe motor will be described hereinafter.

Thread manipulating mechanism A horizontal stub shaft 74 (Fig. 2)projects outwardly from the end member 1 and supports a lever 77. (Figs.2, 4 and 10.) A spring 79 (Fig. 2) secured at one end to lever 77 and atits other end to a bar 80 projecting from bracket 40 tends to swing thelever 77 upwardly in a counterclockwise direction as viewed in Fig. 4.The lever 77 has a cam follower roll 89 (Fig. 2) which engages a cam 90(Figs. 1 and 4) mounted on the shaft 38. The lever 77 has an opening forthe reception of the upper end of a holdback finger 91 which isadjustably secured in position by means of a suitable set screw or thelike. The lower end of this holdback finger is provided with a hook 92for engagement with the warp threads as hereinater more fully described.

The bracket 40 is provided with a lateral arm 40 (Fig. 4) carrying astub shaft on which is pivotally mounted a lever 94. This lever isfurnished with a cam follower roll 103 which is held in engagement witha cam 104 on the shaft 38 by means of a spring 105 attached at its upperend to a pin pro jecting from bracket 40. The lever 94 is provided withan opening for the reception of the upper end portion of a secondholdback finger 105 which is adjustably secured in position byappropriate means, and which has a hook portion 107 (Figs. 4 and 10) atits lower end.

The cams 90 and 104 are spaced apart on the shaft 38 and between them asleeve 108 (Figs. 1, 9 and 10) is fixed tothe shaft. The sleeve isprovided with oppositely extending arms 109 and 110 (Fig. 10) having endportions 111 and 112 respectively disposed in substantially parallelplanes. Blade carriers 113 and 114 are adjustably secured to the members111 and 112 and each blade carrier supports a thin resilient warpseparating blade 116 and 116 respectively. v

A bracket 118 (Figs. 2 and 4) depends from the inner face of end frame 1and supports a bridge member 121, while a bracket 120 (Fig. 2) attachedto the rear rail 4 supports a second bridge member 122 (Fig. 1).Duplicate thread guiding and manipulating mechanisms are carried by therespective bridge members and for purposes of description it isnecessary .to refer only to the instrumentalities carried by bridgemember 121, for which reference may be had particularly to Figs. 4, 5and .8.

Preferably each bridge member carries a yarn guide G which may be ofpolishet steel or other material having a smooth and preferably roundedlower edge 123 whose cen tral portion is substantially horizontal andlies in a plane slightly below the normal plane of. the sheet of warpthreads. At their rear ends the lower edges of these guides G curveupwardly, and the guides terminate inhorns 124 adapted to engage theforward threads of the warp set and to assist in guiding the threadsdownwardly into contact with the horizontal edge portions 123 of theguides.

Preferably each yarn guide member G has an auxiliary guide member Gadj-ustably held in position by means of a screw 123, (Fig. 4) andhaving a substantially vertical end surface 123 constituting a yarnretain- The lower edge of the auxiliary guide G is smoothly rounded likethat of the main guide G, and by swinging the auxiliary guide about thescrew 123 as a center, its lower corner 123 may be adjusted withreference to the plane of the edge 123 of the main guide. \Vhile suchadjustment of the member G is desirable, it is not always necessary, andif desired the retainer surface.

123 may be formed directly upo the main guide.

The thread positioning instrumentalities carried by each bridge memberinclude a thread positioner comprising a lever 125 (Fig. having a threadengaging and positioning surface 126. This lever is pivotallysupport'edupon a stud 127 projecting from the corresponding bridgemember. A second I lever provided with a hook-like lower end 128(constituting a thread engaging clamp 1 for clamping the thread againstthe positioning surface 126) is also pivotally sup-. ported by the stud127.

A lever 129 having a curved lower end which is hereinafter termed apusher is pivotally supported upon a stud 129 prothan the lever 125.

Links 131 and 132 (Fig. 5) connect the levers 125 and 128, respectively,to one end of a bell crank lever 133 pivotally supported upon a stubshaft 134 projecting from the bridge member. This bell crank lever hasan upwardly projecting arm'135 which is provided with a stud 137carrying a cam follower roll 138 engaging a cam 139 fixed to the maindrive shaft 44, it being understood that a similar cam 139 is providedfor actuating the thread manipulating instru-mentalities of each bridgemember. A spring attached to each lever 135 holds the corresponding roll138 against its cam 139. 1

A bracket 140 (Figs. 1 and 7) is secured to the front rail 3 adjacent tothe head member 1, and has an arm 141 (Fig. 7) which supports a stud 142upon which is pivoted a lever 143. This lever is provided with a camfollower roll 144 which engagesthe periphery of a cam 145 fixed on theshaft 44. A spring 146 attached to an arm 147 of lever 143 keeps theroll 144 in proper engagement with the cam. The lever 143 has an openingin which is adjustably secured the upper end of a looper member 148having a curved yarn engaging lower end 149 which moves from front torear in a vertical plane intermediate. the head member 1 and thebridgemember 121.

The magazine carriage i The magazine and associated mechanism forapplying the drop wires is supported riage, and to hold it steady uponthe rails,

I provide hold down rolls 156. As shown, these latter rolls are carriedby the upwardl projecting arms of a U-shaped bracket 157 (Figs. 1 and11) attached to the rails 3 and 4 at the right-hand end of the mainframe. w

A bracket 158 (Fig. 1) is attached to the front rail'3 in the spacebetween the head 2 and the bracket 157, and this bracket .158 isprovided with a downwardly directed web 159, (Fig. 11) carrying abearing boss 160 aligned with a boss 161 carried by a downwardlydirected arm 162 of the bracket 157. These bosses 160 and 161 support astub shaft 163, upon which is pivotally mounted the lower end of thecarriage actuating lever 164. This lever has a cam follower roll165(Figs. 1 and 11) engaging the periphery of a earn 166 fixed to atransverse shaft 167 (Figs. 1 and 2) carrying a beveled gear 168 (Fig.2) which meshes with a beveled pinion 169 fixed to the rear end of theshaft 44. The bracket 158 is bifurcatedto provide spaced arms, eachcarrying a bearing for the shaft 167, and between which the gear 168 islocated. In order to provide additional support for the shaft 167, itsrear end is mounted in a bearing in a bracket 169 (Fig. 2) attached tothe rear rail 61. r

The cam 166 is given the proper peripheral contour to effect the desiredsequence of positions of the carriage for the placing of successive dropwires, and this cam may be interchanged for cams of other shapes, ifdesired. As here shown, the machine delivers two drop wires for eachrotation of the shaft 14:, and as the ratio of the gear 168 to thepinion 169 is as two to one, it is evident that during each completerotation of the earn 166 four wires are delivered, the cam being shapedto place the carriage in a different position as each of the four wiresis delivered.

The lever 164 carries a post 170, preferably provided with a spline 171,(Fig. 2) and upon this post a split bracket 172 is adjustably secured.This bracket carries a stud 173 (Fig. 2) to which is pivotally securedone end of a connecting rod 178 of adjustable length. The other end ofrod 173 is pivotally secured to a stud 174 (F 1) carried by a splitbracket 175., (Fig. 2) adjustable upon a post 176 fixed in a bracket 177attached to the end member 151 of the carriage, said post 176 preferablyhaving a spline 178 to prevent the bracket from turning on the post. i

A bracket 179 (Fig. 1) secured to the left end member 150 of thecarriage is pro-.

vided with a hook 180 which receives a flexible cord, cable or chain 181(here shown as wire cable 181) whose ends are wrapped around andattached to a drum 182 (Fig. 3) fixed to a shaft 182 (Fig. 1) journalledin spring drum housing 183 secured to the end member 1 of the mainframe. This i nising 188 encloses a coiled spring 183 (Fig. 1) whichtends to turn the shaft 182 in a counterclockwise direction, as viewedin Fig. 1, so as to wind up the cable 181 on the drum, thus tending tomove the carriage to the left whenever such movement is permitted by thecam 166, the spring yielding to allow movement of the carriage in theopposite direction. By changing the positions of brackets 172 and 175and the length of rod 173 the extent of travel of the carriage can bevaried.

The magazine w iich 1' which is narrow transversely to permit drop wiresto be straddled over it so as to rest susnended u 3011 its u er ed 'ebut which is deep vertically so as to form a guide for the.

depending legs of the drop wires, thereby to prevent the wires fromtipping sidewise. This magazine bar 184 is provided at its right-handend with a lug 185 (Fig. 18) which is pivotally connected to the lowerend of a rod 186. The end member 151 of the carriage is provided with arecess 187 for the reception ofthe rod 186 whose upper end passesthrough a vertical bore in the upper wall of the recess. A spring 188disposed within the recess bears against a shoulder at the lower part ofthe rod, and tends to move the latter downward, together with the end ofthe bar 1841. This movement is limited by a nut 189 resting upon theupper surface of the end member 151 and having screw-threaded engagementwith the rod 186.

Near its opposite end the bar 184 is provided ith a downwardly directedleg 190 (Fi 6) having a vertical slot 191. The leg 190 is disposed in avertical slot in a bracket 192 (Figs. 2 and 5) depending from thecarriage, and the baris held in adjusted position at this end by meansof a bolt 193 passing through openings in the bracket and through theslot 191 in the leg 190.

The delivery end of the bar 18 1 is disposed opposite to a vertical slot19 1 (Fig. 6 in the left end member 150 of the carriage. The inner faceof the end member 150 is preferably provided with an accurately machinedliner plate 195, to which parallel ribs 196 and 197 are adjustablysecured, these ribs being spaced apart to provide a chamber 198constituting the end of the drop wire magazine. The end member 150 ofthe carriage is provided with vertical guides 199 and 200 spaced fromits outer face, and a picker carriage 201 is arranged to reciprocatevertically between tne outer face of member 150 and the guide bars 199,200. This carriage has a picker block 202 (Fig. 6") which projectsthrough theslot 194.- and is provided at its inner face with anaccurately spaced surface for engagement with the last drop wire in themagazine, said surface being spaced from the end of the bar 184 adistance slightly greater than the thickness of a drop wire. A pickerelement (notshown) of suitable form, such for example as is disclosed inmy copending application aforesaid, projects from this finished surfaceof the picker block, said picker element extending outwardly toadistance not greater than the thickness of a drop wire, and preferablyslightly less so as to insure its engagement with but a single drop wireat a time.

A lug 203 (Figs. 6 and G) is secured to the picker block carriage 201and has pivotally connected thereto a yoke 201- to which the lower endof a connecting rod 205 is adjustably attached. The upper end of rod 205is secured to a bracket 206 (Figs-1 and 6) journalled upon a crank pin207 projecting from a crank disc 208 fixed to a shaft 209 turning inhearings in a bracket 210 (Fig. 4) and which projects upwardly from theend member 150 of the carriage. A cam 211 is fixed to the crank disc 208and a sprocket wheel 212 is mounted on the rear end of the shaft 209.This sprocket wheel receives a chain 213 (Figs. 2 and passing around asprocket wheel 214 (Fig. 2) n 3011 a transverse shaft 215 (Figs. 1 and6) ournalled in spaced bearing bracket-s 216, one of which is shown inFig. 2 projecting downwardly from the head 150. Between its bearings theshaft 215 carries a large feed roll 217 (Fig. 6) which cooperates with asmall feed roll 218 to complete the withdrawal of wires from themagazine.

The small feed roll 218 is carried by a shaft 219 journalled in a yoke220 (Fig, 5)

which is pivotally supported by a shaft mounted at one end in a bracket221 (Fig. 2) projecting downwardly from the head memher 150, and at itsother end in a rigid arm 222 secured to the bracket 192 by the bolt 193.Springs 223 (Fig. 6) interposed between the yoke member 220 and thebracket 192 tend to move the yoke in a clockwise direction, as viewed inFig. 6, and therefore to keep the roll 218 inoperative relation to theroll 217. The shaft 219 is provided with a pinion 224 (Fig. 2) whichmeshes with a gear 225 on the shaft 215 of the large feed roll 217, theratio of diameters of the pinion and gear being substantially the sameas that of the large and small feedrolls. The forward end of the shaft215 carries a beveled gear 226 (Fig. 1) which meshes with a similarbeveled gear 227 having an elongate hub which turns and slides freely onthe shaft 44. This hub is journalled in a bearing 228 sup ported by abracket 229 projecting downwardly and forwardly from the head member150. This bearing 228 is designed to permit free rotation of the hub ofthe gear 226 but to prevent endwise movement of the hub relative to thebearing. If desired, a ball bearing ring may be provided to take up endthrust between the gear 227 and the bearing. A spur gear 230 is securedto the gear 227 and in all positions ofthe carriage meshes with anelongate pinion 231 carried by a shaft having bearings in brackets 232and 233 attached to the front rail 3 of the main frame. This shaftcarries a pinion 234 (Fig. 1) meshing with a gear 235 fixed to a shaft44.

For advancing the wires in compact rela tion along the magazine bar 184,I provide a pusher block 262 (Fi s. 1 and 19) preferably having a curvedface 263 for engagement with the last drop wire in the magazine andhaving spaced legs 264 adapted to straddle the magazine bar 184. Thisblock is provided wit-h notched lugs 265 adapted to retain a bight of aflexible cord or cable 266 which extends to the right (Fig 3) in theform of runs disposed at opposite sides of the bank B of drop wiresmounted on the bar 184. These runs of cable pass around guide pul eys267 (Fig. 3) mounted on studs projecting from the inner surfaces of thecarriage rails 152 and 153, and then extend to the left (Fig. 3) andhave their ends attached to a drum 268 (Figs. 3 and 11) mounted on ashaft 269 turning in bearings in brackets 270 and 271 attached respectively to the rails 153 and 152. The

bracket 271 carries a housing for a coiled (Fig. 1) which tends to turnspring 272 7 the shaft 269 with the drum 268 in a 010.01;-

wise direction, and thus to wind up the cable 266 so as to urge thepusher block to the left, thereby resiliently compressing the wiresforming the bank B, forcing and urging the wires along the magazine railto ward the picker device. To prevent the endmost wire in the magazinefrom rising as the picker moves up,I provide an adjustable guard member273 conveniently secured to the bracket 179 carried by the head 151. V

To assist in accurately placing the wires as delivered by the feedrolls, 1 provide a chute 250 (Fig. 1) supported upon a shaft 251journalled in a boss 252 carried by the bracket. 221. This chute hascentrally disposed longitudinal rib 253 on its face (Fig. 1) adapted toenter between the legs of a descending drop wire and to guide the wireaccurately in its descent. The upper end of'the chute is disposedslightly to one side of the bi ht of the feed rolls so that as a wire Wis delivered by the rolls its advancing end will engage the inclinedsurface of the chute. The shaft 251 carrying the chute 250 is providedat its end with an arm 254 (Fig. 2) which engages a cam 255 on the faceof the gear 225. A spring 256 coiled about the chute supporting shaft251 keeps the arm 254 in contact with the cam. Thus at each rotation ofthe large feed roll 217 the chute is rocked. V i

'If the wires were permitted to slide down the chute directly onto theyarn, the weight and momentum of a wire mightbe sufiicient tobreak theyarn. To prevent this,

I provide rigid supporting means adapted to receive the moving wire, andfrom which the wire is subsequently delivered to the yarn with a minimumdegree of shock. This supporting means preferably comprises a fixedsubstantially horizontal shaft 257 upper edge portion 260 (Fig. uponwhich the wire is initially deposited. The outer end 261 of the fingeris disposed at a slightly lower level than the edge 260 and as the wirewith the yarn between its legs is moved along the edge 260 by the actionof the yarn manipulating instrumentalities, the wire gradually movesdown onto the part 261 which lies substantially in the plane of, orslightly below, the plane of the yarns as defined by the lower edges ofthe guide members G, so that the weight of the wire is transferred tothe yarn gradually and without shock.

In order accurately to deliver the wires onto the vertical supportinfingers 259, I provide the chute 250, at opposite sides of the rib 253,with wireengaging surfaces which are disposed at different inclinationsso that as the wire descends, the ends of its legs are spaced to admitthe edge of the supporting finger 259 between them. To prevent the wirethus sprung out of its normal plane from snapping out of control whenits upper end is released from the feed rolls, I prefer to provide aninclined guard plate 260 (Fig. 1) at one side of each supporting finger.These guard plates are carried by brackets mounted on the shaft 259 andare so disposed that as the elevated leg of the wire advances, it mayengage the guard plate and thus be flexed downwardly so that when itsupper end is released, the wire will drop safely upon the supportingarm.

Stop motion The motor is controlled by a switch de vice 236 carried by abracket secured to the rail 153 of the carriage. This switch may be ofany suitable type, but preferably employs a starting button 237 and astopping button 238 (Fig. For convenience in operating these buttons, 1provide levers and 240 respectively, mounted on a stub shaft carried byaubracket 241. Preferably the stop lever 240 carries an adjustablecontact screw 242. A bell crank lever 243 (Fig. 2) is pivotallysupported upon a stub shaft 244 projecting from the switch carryingbracket and has an upwardly directed arm supporting a rocker lever 245.This lever 245 has at one end a cam follower roll 246 which is held incontact with the cam 211, above described, by means of a spring 245. Theopposite end of the lever is widened at 247 to provide an actuator,engageable under certain circumstances with the top of the screw 242whereby to depress the lever 240 and the button 238, thereby to stop themotor.

The lever 243 has a depending arm 248 which engages an upwardlyprojecting finger 249 carried by the yoke 220 (Fig. 6)

= which supports the small feed roll 218. Formally when wires are beingdelivered in orderly sequence by the picker and feed rolls, thesuccession of wires holds the feed rolls apart a distance equal to thethickness of the wire. When so separated, the finger 249, acting on thearm 248, holds the lover 243 in such position that when the lever 244 isrocked by the cam 211, the actuator247 fails to engage the screw 242.but if for any reason the wires fail to feed between the feed rolls, thesprings 223 move the yoke 220 toward the main feed roll, thus causingthe finger 249 to move away from the arm 248, permitting the spring 245to swing the arm 244 bodily to the left as viewed in Fig. 2 until theactuator 247 lies above the screw 242. Upon the next downward movementof the actuator by the cam 211, the stop lever 240 and the button 238are depressed, and the motor is stopped.

The operation of the mechanism is substantially as follows, it beingassumed that the rails 14 and 15 Which support the mechanism aredisposed transversely of the yarns of the warp sheet; that the magazinebar 184 has been supplied with a quantity of drop wires forming acompact bank B, which is urged lengthwise of the bar toward the pickerblock 202 by the pusher 262 and the spring 272; that a drop wire V (Fig.6) has been fed downwardly between the rolls 217 and 218 so as to holdthe rolls in spaced relation with the supporting bracket 220 for roll218 positioned to cause the lever 243 to withdraw the actuator 247 fromabove the screw 242; that the feeler 32 is sup ported by threads of thewarp sheet so as to hold the feeding pawl out of operative position; andthat the separating blades 116 and 116 are disposed to turn in thevertical plane of the crossing of the leased warps. It is also assumedthat the warps are leased substantially as disposed in my patent No.1,516,675 dated November 25, 1924 by the use of large lease rods L L(Fig. 10) and small lease rods 1 1 the large lease rods keeping theupper and lower warp sheets S S spaced apart a suflicient distance forproper operation of the hold-back fingers 91 and 105*, while the smalllease rods provide a sharp and definite crossing point for the warps,accurately disposed in the vertical plane of rotation of the separatorfingers 116 and 116. It is further assumed that the picker block 202 isnear the upper end of its stroke, and that the first warp a (Fig. 10) ofthe upper sheet S at the left, viewed in Fig. 10) has been separatedfrom the main body of the warps and has been provided with a drop wireW. The holdback member 105 is now engaging the next warp a of the sheetS, while the separator finger 116 has come into engagement with theforemost Warp b of the sheet S while the hold-back finger 91 has risensufiicient to release the warp b from the other warps '10. Thus, asshown in Fig. 12, the pusher 129 has just completed its movement to theright and has carried the yarn a with its drop wire 1V to the rightuntil the yarn has snapped below the lower corner of the guide G andinto engagement with the vertical edge 123 which retains it as thepusher subsequently retreats. The separator finger 116 has already begunto move the yarn l) to the right; the positioner 125 is approximately atthe right-hand extremity of its path of movement; and behind guard G-the clamp 128 is nearly at the left-hand end of its path, and the looper148 is just on the point of starting to the right, the picker blockhaving just started to'deliver a second wire from the magazine.

As the machine continues to operate, the looper 148 rapidly advances tothe right as shown in Fig. 13, so as to engage the yarn b and to retainthe latter in its advanced position as the upward swing of the separator 116 releases it. The clamp 128 now begins to move to the rightwhile the positioner 125, (still concealed by guard G) the pusher 129and the-looper 148 move to the left at different rates (Fig. 14) untilultimately the looper.148 and the pusher 129 have retreated to theleft-hand end of their paths, while the yarn b is held by the clamp 128against the substantially vertical left-hand face of the positioner 125.While the yarn is thus accurately clamped at two spaced points (betweenthe positioner and the clamp of each bridge member) the feed rollsadvance the drop wire V7 until its legs straddle the yarn b and it fallsonto the edge 260 of the corresponding support 259. The clamp 128 andpositioner 125 now begin to separate, moving in opposite directionstoward their original positions,

while the pusher 129 begins again to move to the right (Fig. 16). As thepusher advances, it engages the loaded yarn 2') released by the clampand positioner 17) and moves it to the right until whenthe pusher againreaches the position of Fig[ 12 the yarn I) also snaps up intoengagement with the surface 123*, crowding the yarn a, to the right. Theparts are now in the initial position ready to repeat the above sequenceof operations upon the yarn a" which has been released by elevation ofthe finger (finger 91 having already moved down to hold back the yarn ofthe series S and which is advanced by the separator finger 116 in thesame way as was the first yarn a.

During the above sequence of operations the cam 166 moves the carriageso as to deliver drop wires in different planes to form a. series ofbanks upon the warps. Thus, as illustrated in Fig. 1, drop wire TV hasbeen deposited upon the first support 259 from the left-hand end of therow of supports, while wire V is just aboutto be delivered onto thethird support 259 of the row. The next wire will be delivered onto thefourth support, the next onto the second, the next onto the first, etc.,thus forming a plurality of banks upon the warp yarns. By properlyshaping the cam 166, the .number of banks may be changed.

At each rotation of the shaft 44, the lifter lever 33 is depressed,allowing the feeler or hammer 32 to drop, if sufiicient warp threads arenot disposed below it to support it. After the machine has placed dropwires upon a certain number of warp threads, the

separation of the threads from the main body of the warps permits thefeeler or hammer 32 (when relieved of the support of the lifter 33) todrop below the level of the warp sheet. This allowsthe pawl 25 to engagea tooth of the ratchet wheel 21, and as the cam on the shaft 38 rotates,it depresses the lever 21 and actuates pawl 25 so to rotate the ratchetwheel so as to turn the shaft 8 with its, rolls 9 and 10, thus advancingthe entire machine along the rails 14" and 15 so that the yarnmanipulating instrumentalities are placed in position to engage a freshUpon the next up-.

group of warp yarns. ward movement of the lifter lever 33, the feeler orhammer 32 is lifted above the plane of the warps and when the feeler isagain released by depression of the lever 33, it is supported by a freshgroup of warps, thus keeping the pawl 25 out of engagement witl therachet 21 until this new group of yarns is exhausted. whereupon theadvancing movementof the machine is repeated.

During the operation of the machine,the spring 183 keeps the follower165 incontact with the carriage actuating cam 166,

while the spring 272 constantly presses the block 262 against the bank Bof wires in the magazine, urging the latter toward the picker block sothat the latter is able to I invention is not necessarily'limited eitherby the exact parts here illustrated, or to specific relative arrangementshown, and that equivalents may be substituted for the mechanisms orelements herein disclosed without departing from the spirit of theinvention. it is further to be understood, above sugges ed, that the cam166 may be so arranged as to dispose the drop wires in a greater orlesser number of banks, and further that while I have here shown twoseparator fingers 116 and 116 which act alternately, a single linger ora number greater than two may e employed with corresponding changes inthe gearing driving the separator finger shaft.

I claim:

1. A machine for associating detached loom elements with warp yarnscomprising a magazine and means for moving the magazine relatively tothe warp yarns including resilient means tending to move the magazine inone direction and power driven means for moving it in the oppositedirection.

2. A machine for associating detached loom elements with warp yarnscomprising a magazine for such elements, means for moving the magazinebodily with reference to the warp yarns wherebv to deposit suc cessiveelements at differem positions lengthwise of adjacent yarns, said meanscomprising adjustable parts whereby the length of travel of the magazinemay be varied.

3. A machine for associating drop wires with warp yarns comprisingamagazine for holding a series of drop wires, a movable carriage for themagazine, a lever having a cam follower, a link of adjustable lengthconnecting the lever to the carriage, a cam element engaging the camfollower for swinging the lever, and means adapted to hold the camfollower always in engagement with the cam element.

4. A machine for depositing drop wires upon warp yarns comprising anelon ate magazine for holding a serie of said wires, said magazine beingmovabl a cam for moving the magazine in one direction, and yieldingmeans tending to move the magazine in the opposite direction.

5. A machine for depositing drop wires upon warp yarns comprising anelongate magazine for holding a series of said wires, a :movablecarriage for the magazine, a rotary cam adapted to move the carriage inone direction to any of a plural y of diff-erent positions, and meanstending to move the carriage in the opposite direction comprising acable attached to the carriage and means for yieldingly tensioning thecable.

6. A machine for depositing drop wires upon warp yarns comprising a mainframe having guide rails, a magazine carriage mounted to move along saidrails, the carriage having means for supporting a series of drop wires,means at one end of the magazine carriage for picking off wires one byone from the end of the series and for successively delivering suchwires to selected warp yarns, a follower member engaging the drop Wireat the opposite end of the series, a spring actuated drum mounted uponthe carriage, a cable engaging the follower member and having a portionwound upon the drum whereby the latter constantly urges the followerinto contact with the drop wire to compact the series of wires, a econdspring actuated drum, a cable attached to the carriage and having aportion wound about the latter drum whereby the latter constantly tendsto move the carriage in one direction, and power actuated means formoving the carriage in the opposite direction.

7. A machine for associating detached loom elements with warp yarnscomprising a movable carriage, a magazine supported thereby, meansmoving with the magazine for discharging such elements in orderlysequence therefrom, and means for actuating said discharging meanscomprising an elongate drive pinion having its axis parallel to the pathof movement of the carriage, and a gear supported by the carriage, saidgear moving with the carriage lengthwise of the pinion but meshing withthe latter in all positions of the carriage.

8. A machine for depositing drop wires upon warp yarns comprising a mainframe and an elongate drive pinion carried by the main frame, a carriagemovable in a path substantially parallel to the axis of the pinion, thecarriage comprising means for supporting a series of drop wires, meansmounted upon the carriage for delivering wires one by one from themagazine, said delivery means comprising an actuating gear supportedbythe carriage and which meshes with the elongate drive pinion in allpositions of the carriage.

9. A machine for associating detached loom elements with warp yarnscomprising a magazine for such elements, means for delivering suchelements one by one from the magazine, a pivoted chute for guiding theadvancing elements as delivered from the magazine, and means for movingthe chute from an initial position in which its active surface issubstantially parallel to the path of the advancing element at thebeginning of its. advance to a position in which the active surface ofthe chute is inclined with respect to said initial position as theelement completes its advance.

10. A machine for depositing drop wires upon warp yarns comprising amain frame, amovable carriage supported thereby, said carriage beingmovable in a path parallel to the warp yarns and comprising means forholding a series of drop wires and for delivering one wire at a timefrom said series,

To is:

means for moving the carriage successively to each of a plurality ofpredetermined positions whereby to place the wires in distinct banksupon the warp yarns, spaced supporting fingers carried by the mainframe, said fingers corresponding to the positions of the several banksof drop wires to be formed and extending transversely of the warp yarns,and means for guiding the advancing end of a drop wire as it isdelivered so as to cause its legs to straddle a corresponding supportingfinger.

11. A machine of the class described comprising a stop lever, anactuator for moving the stop lever to stop the machine, means for movingthe actuator at regular intervals, the path of the actuator normallybeing such that it does not operate the stop lever, and means forchanging the path of movement of the actuator so that when moved itoperatively engages the stop lever thereby to stop the machine.

12. A machine for depositing drop wires upon warp yarns comprising anelongate magazine for holding a series of said wires, means fordelivering wires one by one from the magazine and for guiding thedelivered wire onto a warp yarn, an electric motor for actuating theparts, said machine comprising a stop element for cutting off currentfrom the motor, a rocker lever having an actuator member engageable withthe stop element to operate the latter, a moving support for the rockerlever, means for moving the rocker lever at predetermined intervalsduring the operation of the machine, means for so positioning the rockerlever support during orderly operation of the machine as to preventoperative engagement of the actuator member with the stop element, andmeans for so moving the support upon failure of the drop wire properlyto deliver from the magazine as to permit the actuator member to engagethe stop element.

13. A machine for depositing drop wires upon warp yarns comprising anelongate magazine for holding a series of said wires, a movable carriagefor the magazine, a rotary cam adapted to move the carriage in onedirection, said cam having in succession a plurality of active portionsof different radii, and means tending to move the carriage in anopposite direction comprising a spring actuated drum and a cableconnecting the carriage and drum.

14. A machine for associating detached loom elements with warp yarnscomprising a rotary shaft, yarn separator fingers carried by the shaft,a pair of levers each carrying a yarn holdback finger and a camfollower, and cam means on said shaft engageable with said cam followersfor causing the holdback levers to move alternately toward operativeposition.

15. A machine for depositing drop wires upon warp yarns comprising apair of supports spaced lengthwise of the warp yarns,

each support carrying a yarn pusher, a yarn clamp and a yarn positioner,a lever carried by each support for actuating the pusher, clamp andpositioner, each such lever.

having a cam follower, a drive shaft, and a 7 ceiving'the wire asdelivered, means for relatively deflecting the legs of the advancingwire to permit them to straddle the support, and a guard memberengageable with one leg at least of the advancing wire to insure itsproper deposit upon the support.

Signed by me at Lawrence, Massachusetts, this 17th day of August, 1929.

SEBASTIANO MAGNANO.

